6.4: Microbial Culture Methods Last updated Jan 3, 2021 Save as PDF 6.3E: Special Culture Techniques 6.4A: Enrichment and Isolation Page ID8661 BoundlessBoundless ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy6.4A: Enrichment and IsolationUnderstanding the nutritional requirements of bacteria can aid their enrichment and isolation.6.4B: Pure CultureA pure culture is a population of cells or multicellular organisms growing in the absence of other species or types.6.4C: Preserving Bacterial CulturesBacteria can be stored for months or years if they are stored at -80 °C and in a high percentage of glycerol.6.4D: The FISH TechniqueFISH is a hybridization technology which allows the labeling of target RNAs with a fluorescent probe.6.4E: Coupling Specific Genes to Specific Organisms Using PCRPCR allows for the amplification and mutation of DNA and allowing researchers to study very small samples.